After Paul Walker died in a November 2013 car accident filming Furious 7, director James Wan and the visual effects team were tasked with digitally re-creating the late franchise star in several scenes to complete the film.

Filmmakers didn't want to discuss which shots were which at the time of the film's release, as they thought it would be distracting.

But nearly two years after the star's death, the film's creative team at Weta has revealed out of the 350 shots they worked on, a few scenes in which that they had to re-create the actor were especially challenging to pull off.

Surprisingly, artists said that the fast-paced action scenes were the easier scenes to work on. Visual-effects supervisor Martin Hill said the toughest were: